It’s October 31st, All Hallows’ Eve, (aka “Halloween”). That means the neighborhood kids will be ringing doorbells as soon as it gets dark. No doubt some of you proscrastinators will wait ’til the last minute to set out your Halloween decorations and Jack-O-Lanterns. Don’t worry, in the video below, our friend, 3-Gun ace Taran Butler, shows how to carve a pumpkin in just about 5.5 seconds, give or take a tenth. Taran performed this feat of speed-carving with his trusty Infinity handgun, chambered in 9mm Major.
What Are the Origins of Halloween?
Halloween or Hallowe’en (a contraction of “All Hallows’ Evening”), also known as All Hallows’ Eve, is a yearly celebration observed on October 31, the eve of the Western Christian feast of All Hallows (or All Saints). According to many scholars, it was originally influenced by western European harvest festivals and festivals of the dead with possible pagan roots, particularly the Celtic Samhain. Others maintain that it originated independently of Samhain and has Christian roots.
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RifleShooter online magazine has published a list of the Ten Best Bolt-Action Rifles of All Time. Ten classic rifle designs (including the Remington 700 and Winchester Model 70) are illustrated with a paragraph or two explaining their notable features.
These Top 10 lists are always controversial. While most readers might approve of half the entries, there are always some items on the Top 10 list that some readers would challenge. Here is RifleShooter’s Top 10 list. What do you think? Are there some other bolt-actions that are more deserving?
1. Springfield M1903
2. Mauser 98
3. Winchester Model 70
4. Remington Model 700
5. Weatherby V
6. Sako L61/AV
7. Savage Model 110
8. Ruger M77
9. Tikka T3
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Can sustained rapid-fire shooting with no cool-down period wear out a quality barrel more quickly? The answer is “Yes” according to Forum member LCazador, who recently did an interesting comparison test with two .243 Win barrels. He started off with two, identical, match-grade HV taper stainless barrels. Both were NEW at the start of testing, and LCazador shot the same load through each: 95gr match bullets with 38 grains of Hodgdon Varget. After giving both barrels the same, gentle 20-round break-in, 300 rounds were then fired through each barrel — in very different ways. Barrel condition and wear were monitored with a borescope.
Barrel One — Slow Fire, Cool Down Periods, Cleaning Every 50 Rounds
At the end of the 300-round test, Barrel One looked brand new. There was none of the severe fire cracking found in Barrel Two. This barrel was shot no more than 10 times without a cool down and firing was done at a much slower pace. Cleaning for this barrel was done every 50 shots.
Barrel Two — Fast Firing, No Waiting, Cleaning Every 100 Rounds
The second barrel, which received hard use and minimal cleaning, was severely damaged with severe fire cracking at the leade and throat. As a result, the barrel had to be re-chambered. This barrel was shot 100 rounds at time without cleaning and was shot up to 20 times in succession without a cool down.
Don’t let your barrel get too hot, and keep it clean. One afternoon can ruin a barrel!
Monitoring Barrel Wear with Borescope
Some folks worry too much about what their borescopes reveal — many barrels do not have to be “squeaky clean” to perform well. In fact some barrels run better after ten or more fouling shots. However, a borescope can be very helpful when your barrel starts losing accuracy for no apparent reason. Forum member FdShuster writes:
“A borescope is a positive way of backing up your suspicions when the rifle starts to throw an occasional (soon followed by more frequent) wild shot. Using the scope is also an excellent way to determine that the cause is barrel wear and not simply a need for a concentrated cleaning session to remove built up copper and more importantly, carbon fouling.
I’ve had a few barrels that gave every indication of being shot out. But I ‘scoped them out and found the cause to be nothing more than requiring a good cleaning. They then returned to their usual performance. There’s no guessing involved when you are able to get ‘up close and personal’ using the scope. The borescope also provides an excellent view of the all-important condition of the crown. My borescope is one of the most valuable investments I’ve ever made.”
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Readers often ask us: “Is there an inexpensive way I can get started in position shooting?” The answer is “yes” — across the country CMP-affiliated clubs host Rimfire Sporter matches. You can use a wide variety of .22LR rimfire rifles — manual actions (such as a Winchester model 52) or semi-automatics (such as a Ruger 10/22). There are prone, sitting/kneeling, and standing stages. CMP rules provide separate classifications for scoped rifles, open-sighted rifles, and aperature-sighted rifles. The matches are fun, the ammo is inexpensive, and everyone has a good time while improving their marksmanship.
Our friend Dennis Santiago recently helped run a CMP Rimfire Sporter Match in Southern California. Dennis reports: “You want something challenging? Well that X-Ring 50 yards away is the diameter of a 50 cent piece, and there are people out there that can womp that thing with iron sights.”
The rapid-fire sitting or kneeling stage of a CMP-sanctioned .22 Sporter Match consists of two, 5-shot strings. A manually-operated or semi-automatic rifle may be used for this match. Below is a video Dennis made that shows a sitting/kneeling rapid fire stage.
Dennis notes: “There are six (6) stages of fire on a tough little target. Notice the rifles that can be used run the gamut from pump and bolt actions to variations on the semi-auto theme. All still require a good eye and a steady hold to earn one’s bragging rights for the day. A match takes about an hour and a half per relay. The slowest part of the match is initial sighting in. It’ll take longer than the allocated 5 minutes for the typical first timer coming to a club match.”
At Dennis’s Burbank Rifle & Revolver Club (BRRC), procedures are modified a little bit: “What we typically do at BRRC is run two relays. Experienced competitors shoot per the full rulebook. New shooters are afforded a bit more relaxed environment to make the experience more fun and inviting. We do the same thing in our M-1 Garand Clinic/Match series.”
Rimfire Sporter Match Basics
The CMP Rimfire Sporter Rifle Match is an inexpensive, fun-oriented competition using .22 caliber sporter rifles (plinking and small game rifles) commonly owned by most gun enthusiasts. To compete, all you need is a basic rifle, safety gear, and ammunition. No fancy, high-dollar rifles are required.
The event is shot with standard sporter-type, rimfire rifles weighing no more than 7 ½ lbs, with sights and sling. Rifles may be manually-operated or semi-automatic. Shooters with manually-operated actions are given extra time in the rapid-fire stage to compensate for the difference. (See Video).
There are three classes of competition — the standard “O Class” for open-sighted rifles, “T-Class” for telescope-sighted and rear aperture-sighted rifles and “Tactical Rimfire” class, which is a .22 caliber A4 or AR15 style rifle. Firing for all classes is done at 50 and 25 yards on a target with a 1.78″ ten-ring and an 18″ outer one-ring. Even new shooters can get hits on this target, but it’s still tough enough that no one yet has fired a perfect 600×600 score.
UPDATE: On October 29th, at the Nationals, Derek Rodgers beat his own new record, with a 200-12X!
Congratulations to Derek Rodgers for setting a new 1000-yard National Record with a score of 200-11X at the Arizona Long Range Regional in Phoenix. A past national F-Class Champion, Derek is a member of Team Sinclair and the U.S. National F-TR team. Derek’s rifle is built on a Kelbly action, using a Bartlein barrel and a McMillan stock. It is topped with a Nightforce Optics scope. His ammo was made using Berger bullets, Lapua brass and Hodgdon Powder.
F-Class competition continues this week at the Ben Avery Shooting Facility in Phoenix Arizona this week. The 2014 F-Class National Championhip runs October 28 through November 2, 2014. The F-Class National Championship is a multi-day match comprising of all shots at 1000 yards. There will be a mix of individual and four person team matches. The competition consists of two different Divisions: F-Open and F-TR (Target Rifle). Each Division is made up of five different Categories: High Master, Master, Expert, Sharpshooter and Marksman.
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Chances are that many of you have packed away your ammo and shooting supplies for the winter. Maybe you put your brass in a storage bin that might also contain solvents, old rags, or used bore swabs. Well, if you use any ammonia-based solvents, we suggest you separate the brass and ammo and keep it away from potential ammonia vapors. This is because long-term exposure to ammonia fumes can cause cracks to form in your brass. This can lead to case ruptures and possible injury.
This case-cracking phenomenon has been called Season Cracking, a form of stress-corrosion cracking of brass cartridge cases. Season cracking is characterized by deep brittle cracks which penetrate into affected components. If the cracks reach a critical size, the component can suddenly fracture, sometimes with disastrous results. If the concentration of ammonia is very high, then corrosion is much more severe, and damage over all exposed surfaces occurs. The brass cracking is caused by a reaction between ammonia and copper that forms the cuprammonium ion, Cu(NH3)4, a chemical complex which is water-soluble. The problem of cracking can also occur in copper and copper alloys such as bronze.
Season Cracking was originally observed by the British forces in India a century ago. During the monsoon season, military activity was reduced, and ammunition was stored in stables until the dry weather returned. Many brass cartridges were subsequently found to be cracked, especially where the case was crimped to the bullet. In 1921, in the Journal of the Institute of Metals, the phenomenon was explained by Moor, Beckinsale, and Mallinson. Apparently ammonia from horse urine, combined with the residual stress in the cold-drawn metal of the cartridges, was responsible for the cracking.
Don’t store ammunition (or brass) for long periods in a box or container holding ammoniated solvents:
The Australia Department of Defense (AUSDOD) has also explored the problem of brass cracking caused, at least in part, by exposure to ammonia. A study was done to see whether the amount of cracking (from ammonia exposure) varied according to the duration and temperature of the annealing process used on the brass. CLICK HERE to read AUSDOD Research Report.
Story idea from Boyd Allen. We welcome reader submissions.
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In the digital archives of Shooting Sports USA, we’ve found some great features that deserve a second look. A few years back, Shooting Sports USA published Sights, Wind and Mirage, an outstanding article that explains how to judge wind speed/direction and adjust your sights accordingly. Authored by highly respected shooter Ernest (Ernie) Vande Zande, this article is a definite “must-read” for all competitive rifle shooters — even those who shoot with a scope rather than irons. Vande Zande’s discussion of mirage alone makes the article well worth reading. Highly recommended.
Invaluable Insights from a World-Class Shooter
The article covers a wide variety of topics including Wind Reading, Mirage, Effects of Sight Canting, Quadrant Shooting, and Sight Adjustment Sequencing. Vande Zande offers many jewels of insight from his decades of experience shooting and coaching in top level tournaments. U.S. Shooting Team Leader at the 1996 Olympics, Vande Zande has set more than 200 records in National and International competition. He was the Smallbore Rifle Prone Champion at Camp Perry in 1980. An International Distinguished shooter, Ernie has been on nine Dewar teams and he was a member of the USAR Shooting Team from 1982. No matter what your discipline, if you are a competitive rifle shooter, you should CLICK HERE to read Sights, Wind, and Mirage.
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In discussions of ballistics, you’ll see references to “tangent” and “secant” bullet shapes. We know that, for many readers, these terms can be confusing. To add to the confusion, bullet makers don’t always identify their projectiles as secant or tangent designs. This article provides a basic explanation of tangent and secant designs, to help you understand the characteristics of both bullet shapes.
Tangent vs. Secant vs. Hybrid
Most match bullets produced today use a tangent ogive profile, but the modern VLD-style bullets employ a secant profile. To further complicate matters, the latest generation of “Hybrid” projectiles from Berger Bullets feature a blended secant + tangent profile to combine the best qualities of both nose shapes. The secant section provides reduced drag, while the tangent section makes the bullet easier to tune, i.e. less sensitive to bullet seating depth position.
Berger Bullets ballistician Bryan Litz explains tangent and secant bullet ogive designs in a glossary section of his Applied Ballistics website, which we reprint below. Bryan then explains how tangent and secant profiles can be combined in a “hybrid” design.
How Bullet Ogive Curves are Defined
While the term “ogive” is often used to describe the particular point on the bullet where the curve reaches full bullet diameter, in fact the “ogive” properly refers to the entire curve of the bullet from the tip to the full-diameter straight section — the shank. Understanding then, that the ogive is a curve, how is that curve described?
LITZ: The ogive of a bullet is usually characterized by the length of its radius. This radius is often given in calibers instead of inches. For example, an 8 ogive 6mm bullet has an ogive that is a segment of a circular arc with a radius of 8*.243 = 1.952”. A .30-caliber bullet with an 8 ogive will be proportionally the same as the 8 ogive 6mm bullet, but the actual radius will be 2.464” for the .30 caliber bullet.
For a given nose length, if an ogive is perfectly tangent, it will have a very specific radius. Any radius longer than that will cause the ogive to be secant. Secant ogives can range from very mild (short radius) to very aggressive (long radius). The drag of a secant ogive is minimized when its radius is twice as long as a tangent ogive radius. In other words, if a tangent ogive has an 8 caliber radius, then the longest practical secant ogive radius is 16 calibers long for a given nose length.”
Ogive Metrics and Rt/R Ratio
LITZ: There is a number that’s used to quantify how secant an ogive is. The metric is known as the Rt/R ratio and it’s the ratio of the tangent ogive radius to the actual ogive radius for a given bullet. In the above example, the 16 caliber ogive would have an Rt/R ratio of 0.5. The number 0.5 is therefore the lowest practical value for the Rt/R ratio, and represents the minimum drag ogive for a given length. An ogive that’s perfectly tangent will have an Rt/R ratio of 1.0. Most ogives are in between an Rt/R of 1.0 and 0.5. The dimensioned drawings at the end of my Applied Ballistics book provide the bullets ogive radius in calibers, as well as the Rt/R ratio. In short, the Rt/R ratio is simply a measure of how secant an ogive is. 1.0 is not secant at all, 0.5 is as secant as it gets.
Hybrid Bullet Design — Best of Both Worlds?
Bryan Litz has developed a number of modern “Hybrid” design bullets for Berger. The objective of Bryan’s design work has been to achieve a very low drag design that is also “not finicky”. Normal (non-hybrid) secant designs, such as the Berger 105gr VLD, deliver very impressive BC values, but the bullets can be sensitive to seating depth. Montana’s Tom Mousel has set world records with the Berger 105gr VLD in his 6mm Dasher, but he tells us “seating depth is critical to the best accuracy”. Tom says a mere .003″ seating depth change “makes a difference”. In an effort to produce more forgiving high-BC bullets, Bryan Litz developed the hybrid tangent/secant bullet shape.
Bryan Litz Explains Hybrid Design and Optimal Hybrid Seating Depths
Story sourced by Edlongrange.
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Here’s a very interesting spotting scope stand, from Forum member (and ace F-Class shooter) Monte Milanuk. You can see this stable rig can be adjusted super-low for prone shooting. The components are from Italian photography accessory maker Manfrotto (but it’s not as expensive as you might think).
Click for larger image
Monte tells us about his spotting scope stand, which is really a conventional photography tripod adjusted to a very low position, with a special head:
This stand has a Manfrotto 322RC2 pistol-grip head to make positioning easier. It actually goes even lower, and much, much higher. Both the head and the tripod are about $170-ish each, so it’s a bit more expensive than a Ray-Vin, a little less than a Creedmoor Polecat, and a whole lot more flexible overall.
This Manfrotto 055XPROB Pro Tripod is actually a little on the big side – probably should have gone with a Manfrotto 190 model (couple inches shorter on the legs) so it can be a bit of a hassle to set up when you have to shoot two-to-a-mound a la Fullbore.
It’s probably not as [expensive] as you might think… a Ray-Vin F-Class stand (without head) is about $170 from Creedmoor Sports. A Ray-Vin stand head is $150, plus the outrigger attachment is another $100+. I’ve got two of them downstairs for when I used to shoot conventional prone[.]
Comments from Facebook Fans: Pretty high end setup, should work well for prone, not sure about other positions. — John T.
An excellent and sturdy Manfrotto stand. I have one that I use not only for a spotting scope but to mount the rifle on when allowed for unknown distance tactical matches.–Dennis Santiago
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This Wednesday, October 29, Shooting USA TV features the Bushnell Brawl, a tactical competition that draws top long-range shooters from the military, law enforcement and the civilian shooting communities. The match is held at the famed Rifles Only range in Kingsville, Texas. The Brawl is a one-of-a-kind physical and mental challenge — 20 events test each shooter’s ability to read wind, figure ballistics, and adapt to difficult shooting scenarios. And, each year, the competition proves to be even more challenging. There is even a helicopter stage.
“Whenever the difficulty ramps up, they step up, and we’ve seen it for the last fifteen years doing matches,” says Rifles Only Director, Jacob Bynum. “Ramp up the difficulty, quality goes up.”
The signature event is Trench Warfare, where each competitor gets a chance to shoot from a helicopter before running to the trench. Competitors also shoot from the tower, where shots are out to 1,000 yards. Not all events are shot over long distance. The Five Dot Drill and Know Your Limit on paper are shot inside 100 yards.
Watch Preview of Bushnell Brawl
Shooting USA Television Wednesday Showtimes:
Eastern Time – 3:30 PM, 9:00 PM, 12:00 M
Central Time – 2:30 PM, 8:00 PM, 11:00 PM
Mountain Time – 1:30 PM, 7:00 PM, 10:00 PM
Pacific Time – 12:30 PM, 6:00 PM, 9:00 PM
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Hey guys here’s a torture test video that’s really worth watching — you’ll be shocked and amazed (we guarantee it). In this video, Nightforce Exec Kyle Brown (with help from NF employee Sean Murphy), absolutely brutalizes a Nightforce NXS 5.5-22x56mm scope. He bangs it on a concrete bench-top, throws it 50 yards downrange, knocks it on a hardwood beam multiple times, and then heaves it back again. We kid you not. To our eternal surprise, the Nightforce scope survives all that abuse and shoots fine. What did Timex once say — “Takes a licking and keeps on ticking”?
You’ve got to watch this video — it was shot with five cameras and runs with no “time-outs”, cutaways, or video tricks. What you see is what you get. This is one tough NXS. Thank you Kyle Brown and crew for taking the time to prove the durability of Nightforce Optics products.
Talented 3-position shooter (and trick-shot artist) Kirsten Joy Weiss says that any day at the range is “always a good day”. Here is her photo to prove it. If that shot doesn’t motivate you to spend a day outdoor with rifles, we’re not sure what will…
“Always a good day…” — Kirsten Joy Weiss
Editor’s Comment: We agree with Kirsten that a day at the range is “always a good day”, except well, er, when you ventilate your chronograph, or leave your bolt at home, or load the wrong ammo, or drop a steel gong on your foot, or have a dead battery in your car, or forget the gate lock combination. If you shoot often enough, there’s a chance that one (or more) of those things might happen. But in actuality, getting out to the range is still worth it — especially if you’re there with good friends. Thanks Kirsten for the reminder.